The Use of Low-Dose Botulinum Toxin Injection Into the Masseter Muscle to Treat Sleep Bruxism

Botulinum toxin (BOTOX®) injections into the masseter muscle are an effective treatment for nocturnal bruxism, with several trials using various dosages of botulinum toxin for this purpose. The aim was to evaluate the effectiveness of injecting 10MU of botulinum toxin A (BTXA) into the masseter muscle to reduce nocturnal bruxism, the sample will randomly divided into 2 groups. In the injection group, Patients will inject with 10 MU of botulinum toxin type A (BOTOX® - Allergan Inc. - Dublin - Ireland) per side at two sites into the masseter muscle bilaterally. In this Placebo group, patients will prick twice at the inferior prominent part of the masseter muscle observed using the stinger pen used in the blood glucose meter. The evaluation will make by Electromyography (EMG) analysis, Visual Analogue Scale (VAS) values.